"Close all BUT this" Bugbrowsing

Say you have a bunch of tabs open, one of which is a new-unsaved file (e.g. new 2). If you choose “Close all BUT this” on one of the saved tabs, it asks if you want to save “new 2” - I say yes and save it. Then it carries out the close action, BUT the only remaining open tab is the newly saved “new 2” file, NOT the original tab.